andrews



(No Model.) 2 sheets-sheet 1. E. W; ANDREWS.

INGUBATOR.

N0. 332,033. Efale'nted Deo. 8, 1885.

2 Sheets-Sheet 2.

(No Model.)

E. W. ANDREWS.

INGUBATOR.

Patented Deo. 8, 1885.

i 1111i. I

IIIIIIIIIIIIIIlllIIIIIIIIIIIIIIIIIIIIIIIll ATTEET- N PETERS, Phnw-Lnhngmpher. was

Parana trice.

EDVIN WV. ANDREVS, OF ELMIRA, NEV YORK. A

INCUBATOR.

PECIFICATION forming part of Letters Patent No. 332,033, dated December 8, 1885.

Application filed May 14, 1885.

rIhis invention consists in a novel construction and combination of the devices for properly heating and VentilatingV the egg-chamber in theincubatingcham ber, as hereinafter fully described, and specifically set forth in the claims. I

ln the annexed drawings, Figure 1 is a perspective view of the exterior of my improved incubator. Fig. 2 is a vertical longitudinal section of the same, taken in front of the heating-pipe, which is extended from the lamp into the bottom of the lower heating-chamber. Fig. 3 is a horizontal section through the upper heating-chamber. Fig. 4 is an enlarged detail view of the ventilatorvvalve and its actuating niechanism, and Fig. 5 is an enlarged detail view of the lamp and its connection with the heating-chamber.

Similar letters of reference indicate corresponding parts.

A denotes the incubating-chamber,provided at the front with the usual doors,through which to obtain access to theinterior of said chamber.

B B' represent two metallic heating-chambers, made of the form of rectangular pans covered air-tight and extended horizontally across the interior of the chamber A, with air-passages around their sides and ends, and arranged one above the other, to form the eggchamber C between them, said eggchamber being provided with racksr r, upon which to place the eggs, the racks being removably supported on cleats r', attached to vertical plates secured between the end portions of the heating-chambers B B'. The lower of these chambers is sufficient-,ly above the bottom of the chamber A to form an air-space, E, between them, and suitable ducts, ff, are provided in the bottom of the chamber A for the admission of air. The chambers B B' are connected at the center of one end by a rlue, a, and at the opposite end the upper chamber is provided with the exit-pipe e, and the lower chamber communicates with the Serial No. 165,507. (No model.)

heater, which latter consists of a lamp, L. (Illustrated in detail in Fig. 5 of the drawings.) The chimney of this lamp is composed of a metallic base, H', and a conical upper end portion, H, seated on the base H', and having its smaller end projecting into the chamber B, inside ot' which it has connected to ita horizontal extension or pipe, II", for

the purpose of preventing the heat from impinging directly upon the portion of chamber Bover the end of the chimney. The chimney is surrounded by a cylindrical jacket, I, the upper end of which communicates with the interior of the chamber B. The lower portion ofthe said jacket is provided with apertures t' t' for the admission of air, which in its ascent to the chamber B absorbs the heat radiating from the chimney, and thus aids in heating the said chamber, and also produces the necessary draft to the burner of the lamp and through the chimney to produce proper combustion. The heat passes through the chamber B and asccnds through the due a to the upper chamber, B', and tinally escapes through the eXitpipe c. In order to properly distrib ute the heat in the latter chamber, I provide the same with a central longitudinal partition, e, and arrange the flue a and exit-pipe c in the center of the ends of the chamber, so as to cause the aforesaid partition to bisect the openings of said flue and pipe in the chamber.

F represents a water-pan mounted on top of the lower heating-chamber, B, for the purpose of supplying the chamber A with the requisite moisture. Through the central portion of the upper chamber, B', is extended a ventilatingport, d, and over said port is the ventilator l), secured to the top of the incubating-chamber A and provided with the valve D'.

The operation of my improved incubator is as follows: rIhe heating-chambers B B' receive the heating agent through them from end to end. The air entering the base ofthe chamber A first inipinges upon the bottom oi' the lower heating-chamber, B, and becomes thereby diffused across said bottom, and is caused to absorb thc heat therefrom. rlhe air thence passes around the ends and sides of the chamber B up to the eggchamber C, and over the top c1" the water-pan F to the central port, d, in the upper heating-chamber, B', and in this circu- IOC) lation the air becomes charged with moisture, and is further heated by contact with the upper chamber, B', and thus imparts to the eggchamber the required temperature in a most` effective manner.

Having described my invention,whatIcl-aim as new, and desire to secure by Letters Patent, 1s

l. The combination, with the incubatingchamber A, of the Hat metallic heating-chambers B B', extended horizontally across the chamber A, and having air-passages around their ends and sides, and constituting the bottom and top of the intermediate egg-chamber,

C, the flue a, connecting the heatiig-chambers at one end, the heater communicating with the lower chamber, B, at the opposite end, and the exit-pipe c, connected with the upper chamber, B, at the sameend, substantially as described and shown.

2. In .combination with the incubating`v heating-chambers at the yopposite end, the

water-pan F on top of the lower chamber, B, the Ventilating-port d through the central por` tion of thc upper chamber, B', and the ventilator D on top of the chamber A, substantially as described and shown.

3. In combination with the lower heatingchamber, B, andthe upper heating-chamber, B', the flue a andv exit-pipe c, communicating with the upper chamber, B', respectively, at the center of opposite ends of said chamber, and the longitudinal partition e, arranged in the center of the chamber Band across the center of the openings of the pipes ya c, substantially asdescri-bed and shown.

4. In combination with the heating-chamber B and lamp L, .the chimney H, extending v.

intosaid chamber, and thev jacket I, provided with apertures i z' lin its sides, and having its upperend communicating with the interi-orof the :heating-chamber, substantially as and:for the 4purpose set forth.

In testimony whereof I have hereunto signed my name and affixed my seal, in the vpresence of ftwo `attesting witnesses, at Elmira, vin the county'of -Chemun g, in the State of New York, this 9th day of May, 1885.

EDWINW. ANDREWS. [L s] Witnesses:

BENQ. F. PRALL, RICHARD KER. 

